US9446775B2 - Bogie frame for railway vehicles - Google Patents

Bogie frame for railway vehicles Download PDF

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Publication number
US9446775B2
US9446775B2 US14/418,092 US201314418092A US9446775B2 US 9446775 B2 US9446775 B2 US 9446775B2 US 201314418092 A US201314418092 A US 201314418092A US 9446775 B2 US9446775 B2 US 9446775B2
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Prior art keywords
cross beam
mounting bracket
bogie frame
mounting
plate section
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US20150203132A1 (en
Inventor
Tatsuya Yoshizu
Nobuaki Kaneyasu
Takehiro Kadonaka
Satoshi Tokunaga
Satoshi Kikko
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Nippon Steel Corp
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Nippon Steel and Sumitomo Metal Corp
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Assigned to NIPPON STEEL & SUMITOMO METAL CORPORATION reassignment NIPPON STEEL & SUMITOMO METAL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KADONAKA, Takehiro, KANEYASU, Nobuaki, KIKKO, SATOSHI, TOKUNAGA, SATOSHI, YOSHIZU, Tatsuya
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Assigned to NIPPON STEEL CORPORATION reassignment NIPPON STEEL CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: NIPPON STEEL & SUMITOMO METAL CORPORATION
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/50—Other details
    • B61F5/52—Bogie frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/24—Frameworks

Definitions

  • the present invention relates to a bogie frame for railway vehicles, with particular attention to its mounting brackets for mounting functional parts such as a traction motor, a gearbox, and a brake to the bogie frame. More specifically, the present invention relates to a bogie frame for railway vehicles which is provided with enhanced welding workability for the mounting brackets to be welded to the bogie frame and also with a greater degree of design flexibility for the positions where functional parts are mounted.
  • railway vehicles are composed of a vehicle body and a bogie that supports the vehicle body, and functional parts such as traction motors, gearboxes, brakes, and the like are mounted to a bogie frame of the bogie.
  • Railway vehicles run on rails on power transmitted from traction motors to wheel sets through gearboxes, and braking is applied by actuating the braking system, which causes the rotation of the wheel sets to be inhibited, for example.
  • FIG. 1 is a plan view of a conventional bogie frame.
  • FIG. 2 is a cross-sectional view of cross beams of the conventional bogie frame, schematically showing an example of a configuration for mounting a functional part.
  • FIG. 2 is a sectional view, taken along the direction of rails, in which a vehicle body 5 and a center pin 6 of the vehicle body are also clearly shown for ease of understanding of the configuration.
  • the bogie frame includes a pair of left and right side beams 1 disposed along the direction of rails and the cross beams 2 that connect the side beams 1 to each other.
  • the cross beams 2 are constituted by two round pipes having a circular cross section arranged in parallel to each other as shown in FIG. 2 , and each of them is welded at both ends thereof to the side beams 1 .
  • a pair of upper and lower reinforcing plates 2 a and 2 b is disposed between the cross beams 2 and welded to them.
  • the cross beams 2 are provided with mounting brackets 3 for mounting a functional part, each welded to the outer peripheral surfaces of the cross beams 2 .
  • the mounting brackets 3 include a mounting bracket 3 a for mounting a traction motor, a mounting bracket 3 b for mounting a gearbox, and a mounting bracket 3 c for mounting a brake.
  • FIG. 2 illustrates a state in which the mounting bracket 3 has been welded to the outside half of the outer peripheral surface of one of the two round pipe cross beams 2 , and a traction motor, as a functional part 4 , has been attached to the mounting bracket 3 .
  • the mounting bracket 3 is formed of a plurality of steel plates welded to each other.
  • a mounting bracket formed of a plurality of steel plates welded to each other has a reduced fatigue strength (according to JIS-E-4207 (Japanese Industrial Standards), for example) at the weld zone where it is welded to the cross beam and at the weld zones of the mounting bracket-forming steel plates where they are welded together, as compared to the base metal regions of the steel plates. Because of this, measures for inhibiting an unwanted decrease in fatigue strength of a mounting bracket are desired.
  • Patent Literature 1 discloses a technique of modifying the shapes of the steel plates that constitute the mounting bracket to reduce stress.
  • Patent Literature 2 discloses a technique of improving the quality of the weld joint by optimizing the welding procedure when fabricating the mounting bracket as well as by modifying the shapes of the steel plates that constitute the mounting bracket.
  • the conventional techniques address the need by modifying the size and shape of the mounting bracket, i.e., the size and shape of the steel plates constituting the mounting bracket so as to conform to the positions where functional parts which are in conformity with specifications of railway vehicles are mounted. Needless to say, in the design modification, it is necessary to form the mounting bracket into a shape that provides sufficient strength so as to prevent a decrease in fatigue strength of the mounting bracket.
  • FIG. 3 is a cross-sectional view of cross beams of the conventional bogie frame, schematically showing an example of the difficulties encountered in mounting a functional part.
  • FIG. 3 shows a sectional view taken along the direction of rails as with FIG. 2 .
  • FIG. 3 shows a case in which a functional part 4 is to be mounted to one of the two round pipe cross beams 2 at a location lower than the top thereof and close thereto, as required by certain specifications of railway vehicles.
  • a functional part 4 there is no space for placement of a mounting bracket and thus the functional part 4 interferes with the cross beam 2 .
  • mounting of the functional part 4 cannot be accomplished by any modifications to the size and shape of the mounting bracket, and therefore the overall dimensional configuration of the bogie frame, including that of the cross beams 2 , must be revised.
  • the conventional bogie frame has a significantly low degree of design flexibility for the positions where functional parts are mounted.
  • Patent Literature 1 Japanese Patent No. 4292980
  • Patent Literature 2 Japanese Patent No. 3873659
  • the present invention has been made in view of the foregoing problems. Accordingly, it is an object of the present invention to provide a bogie frame for railway vehicles which has enhanced welding workability for welding thereto mounting brackets for mounting a functional part and also allows a greater degree of design flexibility for the positions where functional parts are mounted.
  • the present inventors intensively searched for techniques that allow mounting of functional parts to suitable positions in accordance with individual specifications of railway vehicles, while satisfying the conditions under which weld lines that are formed when mounting brackets for mounting a functional part are welded to the cross beam are relatively long and straight, and further, not necessitating a change of the overall dimensional configuration of the bogie frame including that of the cross beam.
  • a bogie frame for railway vehicles comprising: a pair of left and right side beams disposed along a direction of rails; a cross beam that connects the side beams to each other; and a mounting bracket for mounting a functional part, the mounting bracket being joined to the cross beam, wherein the cross beam has a rectangular cross section and includes a top plate section, a bottom plate section, and a pair of side plate sections; the top plate section has a cutout opening extending to one of the side plate sections; the mounting bracket is inserted in the cutout opening; and the mounting bracket and the top plate section are joined together by butt welding.
  • the mounting bracket is a monolithically formed component formed by forging or machining.
  • the cross beam comprises a joined-four-plate body, a rectangular pipe, or a press formed product.
  • the bogie frame for railway vehicles of the present invention is capable of being provided with enhanced welding workability because the weld lines, formed between the cross beam and the mounting brackets for mounting a functional part when the mounting brackets are welded to the cross beam, are relatively long and straight. Moreover, a variety of types of functional parts can be mounted to the cross beam simply by modifying the sizes and shapes of the mounting bracket and the cutout opening in accordance with individual specifications of railway vehicles. Thus, it is possible to provide a greater degree of design flexibility for the positions where functional parts are mounted.
  • FIG. 1 is a plan view of a conventional bogie frame.
  • FIG. 2 is a cross-sectional view of cross beams of the conventional bogie frame, schematically showing an example of a configuration for mounting a functional part.
  • FIG. 3 is a cross-sectional view of the cross beams of the conventional bogie frame, schematically showing an example of the difficulties encountered in mounting a functional part.
  • FIG. 4 shows cross-sectional views of a cross beam of the bogie frame in accordance with a first embodiment of the present invention, which schematically shows an example of a configuration for mounting a functional part.
  • FIG. 4( a ) shows a state in which the functional part and the mounting bracket are detached from the cross beam
  • FIG. 4( b ) shows a state in which the mounting bracket has been joined to the cross beam and the functional part has been mounted thereon.
  • FIG. 5 shows cross-sectional views of a cross beam of the bogie frame in accordance with a second embodiment of the present invention, which schematically shows an example of a configuration for mounting a functional part.
  • FIG. 5( a ) shows a state in which the functional part and the mounting bracket are detached from the cross beam
  • FIG. 5( b ) shows a state in which the mounting bracket has been joined to the cross beam and the functional part has been mounted thereon.
  • FIG. 6 shows cross-sectional views of a cross beam of the bogie frame in accordance with a third embodiment of the present invention, which schematically shows an example of a configuration for mounting a functional part.
  • FIG. 6( a ) shows a state in which the functional part and the mounting bracket are detached from the cross beam
  • FIG. 6( b ) shows a state in which the mounting bracket has been joined to the cross beam and the functional part has been mounted thereon.
  • FIG. 7 shows cross-sectional views of a cross beam of the bogie frame in accordance with a fourth embodiment of the present invention, which schematically shows an example of a configuration for mounting a functional part.
  • FIG. 7( a ) shows a state in which the functional part and the mounting bracket are detached from the cross beam
  • FIG. 7( b ) shows a state in which the mounting bracket has been joined to the cross beam and the functional part has been mounted thereon.
  • FIG. 8 shows cross-sectional views of a cross beam of the bogie frame in accordance with a fifth embodiment of the present invention, which schematically shows an example of a configuration for mounting a functional part.
  • FIG. 8( a ) shows a state in which the functional part and the mounting bracket are detached from the cross beam
  • FIG. 8( b ) shows a state in which the mounting bracket has been joined to the cross beam and the functional part has been mounted thereon.
  • FIG. 4 shows cross-sectional views of a cross beam of the bogie frame in accordance with a first embodiment of the present invention, which schematically shows an example of a configuration for mounting a functional part.
  • FIG. 4( a ) shows a state in which the functional part and the mounting bracket are detached from the cross beam
  • FIG. 4( b ) shows a state in which the mounting bracket has been joined to the cross beam and the functional part has been mounted thereon.
  • FIG. 4 shows sectional views taken along the direction of rails as with FIG. 2 , with a traction motor being illustrated as the functional part 4 .
  • the bogie frame of the first embodiment shown in FIG. 4 is based on the configuration of the bogie frame shown in FIGS. 1 and 2 , and therefore redundant descriptions may not be repeated when appropriate.
  • the mounting bracket 3 is composed of two vertically separate parts, an upper bracket member 31 and a lower bracket member 32 , as shown in FIG. 4 .
  • the upper bracket member 31 holds the functional part 4 at an upper portion thereof
  • the lower bracket member 32 holds the functional part 4 at a lower portion thereof.
  • Both the upper bracket member 31 and the lower bracket member 32 are monolithically formed components.
  • this mounting bracket 3 (the upper bracket member 31 and the lower bracket member 32 ), which is a monolithically formed component, may be one formed by forging or machining.
  • this mounting bracket 3 By using a forging or machining process, it is possible to form the mounting bracket 3 relatively easily even if it has a complex shape and to greatly increase the strength of the mounting bracket 3 itself (base metal region).
  • the cross beam 2 has a horizontally elongated rectangular cross section and includes a top plate section 21 , a bottom plate section 22 , and a pair of side plate sections 23 , 24 .
  • the cross beam 2 of the first embodiment is composed of a rectangular pipe having a horizontally elongated cross section.
  • the cross beam 2 may be constructed by joining together a pair of press formed products having a channel-shaped cross section by welding, or by joining together a press formed product having a channel-shaped cross section and a steel plate by welding.
  • the top plate section 21 of the cross beam 2 has an upper cutout opening 26 , extending to one of the side plate sections 23 (the right-hand side plate section in FIG. 4 ), for receiving the upper bracket member 31 .
  • the bottom plate section 22 of the cross beam 2 has a lower cutout opening 27 , similarly extending to one of the side plate sections 23 , for receiving the lower bracket member 32 .
  • These upper cutout opening 26 and the lower cutout opening 27 are hereinafter also collectively referred to as a cutout opening 25 .
  • the upper bracket member 31 is inserted in the upper cutout opening 26 of the cross beam 2 , and a groove is formed as appropriate in the upper bracket member 31 in conformity with the contour of the upper cutout opening 26 , and then a welding process is applied. As shown in FIG. 4( b ) , the upper bracket member 31 is joined to the top plate section 21 of the cross beam 2 by butt welding, and joined to the side plate section 23 (as well as a portion of the top plate section 21 closer to the side plate section 23 , to be exact) by fillet welding.
  • the lower bracket member 32 is inserted in the lower cutout opening 27 of the cross beam 2 , and the lower bracket member 32 is subjected to welding along the contour of the lower cutout opening 27 .
  • the lower bracket member 32 is joined to the bottom plate section 22 of the cross beam 2 by butt welding, and joined to the side plate section 23 (as well as a portion of the bottom plate section 22 closer to the side plate section 23 , to be exact) by fillet welding.
  • FIG. 4( b ) clearly shows a weld bead wg 1 of the butt weld and a weld bead wg 2 of the fillet weld. It is noted that the shape of the groove in the weld zone is not shown in FIG. 4( b ) .
  • the bogie frame fitted with the mounting bracket 3 (the upper bracket member 31 and the lower bracket member 32 ) which has been welded to its cross beam 2 incorporates the functional part 4 via the mounting bracket 3 .
  • the weld lines are relatively long and straight because of the configuration in which: a cross beam 2 with a rectangular cross section which includes a top plate section 21 , a bottom plate section 22 and a pair of side plate sections 23 , 24 is adopted; and then, a cutout opening 25 is formed in the top plate section 21 in such a manner that it extends to one of the side plate sections 23 , the mounting bracket 3 is inserted in the cutout opening 25 , and the mounting bracket 3 is joined to the top plate section 21 by butt welding.
  • This configuration enhances welding workability for the mounting bracket 3 to be welded to the cross beam 2 , and therefore enables automatic welding by a welding robot to be readily performed.
  • the mounting bracket 3 which is a monolithically formed component, may be formed to have a shape-changing portion in accordance with the position where the functional part 4 is mounted so that an area of stress concentration can be kept away from the weld zone.
  • the monolithically formed mounting bracket 3 can have an increased sectional area along the direction of sleepers that is perpendicular to the direction of rails as compared to a mounting bracket formed of a plurality of steel plates welded to each other as employed in the conventional bogie frame, and therefore has further reduced stress concentration.
  • the mounting bracket 3 of the bogie frame according to the first embodiment exhibits an increased fatigue safety factor.
  • FIG. 5 shows cross-sectional views of a cross beam of the bogie frame in accordance with a second embodiment of the present invention, which schematically shows an example of a configuration for mounting a functional part.
  • FIG. 5( a ) shows a state in which the functional part and the mounting bracket are detached from the cross beam
  • FIG. 5( b ) shows a state in which the mounting bracket has been joined to the cross beam and the functional part has been mounted thereon.
  • the bogie frame of the second embodiment shown in FIG. 5 is a variation of the bogie frame of the first embodiment shown in FIG. 4 , in which the configuration of the mounting bracket has been changed and accordingly the configuration of the cutout opening in the cross beam has been changed.
  • the mounting bracket 3 is not composed of two vertically separate parts as shown in FIG. 5 . That is, the mounting bracket 3 of the second embodiment is composed of a single monolithically formed component that holds both upper and lower portions of the functional part 4 singly.
  • the cutout opening 25 of the second embodiment is provided to receive a single mounting bracket 3 and thus is not composed of two vertically separate openings. It extends from the top plate section 21 of the cross beam 2 through one of the side plate sections 23 thereof (the right-hand side plate section in FIG. 5 ) over to the bottom plate section 22 thereof.
  • the mounting bracket 3 is inserted in the cutout opening 25 of the cross beam 2 , and the mounting bracket 3 is subjected to welding along the contour of the cutout opening 25 . Specifically, as shown in FIG. 5( b ) , the mounting bracket 3 is joined to the top plate section 21 and the bottom plate section 22 of the cross beam 2 by butt welding, and joined to the side plate section 23 by fillet welding, although at a very small area in a lower portion thereof.
  • the bogie frame fitted with the mounting bracket 3 which has been welded to its cross beam 2 incorporates the functional part 4 via the mounting bracket 3 .
  • Such a bogie frame according to the second embodiment provides the same advantages as the bogie frame of the first embodiment as described above.
  • the bogie frame of the second embodiment is particularly useful in the case in which the functional part 4 is to be mounted at a location lower than the top of the cross beam 2 and close thereto, i.e., the case in which the functional part 4 would interfere with the cross beam 2 if no measure is taken.
  • FIG. 6 shows cross-sectional views of a cross beam of the bogie frame in accordance with a third embodiment of the present invention, which schematically shows an example of a configuration for mounting a functional part.
  • FIG. 6( a ) shows a state in which the functional part and the mounting bracket are detached from the cross beam
  • FIG. 6( b ) shows a state in which the mounting bracket has been joined to the cross beam and the functional part has been mounted thereon.
  • the bogie frame of the third embodiment shown in FIG. 6 is a variation of the bogie frame of the first embodiment shown in FIG. 4 , in which the configuration of the cross beam has been changed.
  • the cross beam 2 is composed of two rectangular pipes each having a square cross section that are arranged in parallel to each other as shown in FIG. 6 . Between the rectangular pipe cross beams 2 is disposed a pair of upper and lower reinforcing plates 2 a and 2 b which are welded thereto, similarly to the case of the round pipe cross beams 2 shown in FIGS. 1 and 2 .
  • the cutout opening 25 of the third embodiment is composed of an upper cutout opening 26 for receiving the upper bracket member 31 and a lower cutout opening 27 for receiving the lower bracket member 32 .
  • the upper cutout opening 26 extends from the top plate section 21 of one of the two rectangular pipe cross beams 2 to one of the side plate sections 23 thereof (the right-hand side plate section in FIG. 6 ) which connects to the top plate section 21 .
  • the lower cutout opening 27 extends from the bottom plate section 22 of the rectangular pipe cross beam 2 where the upper cutout opening 26 is formed to one of the side plate sections 23 thereof (the right-hand side plate section in FIG. 6 ) which leads to the bottom plate section 22 .
  • the upper bracket member 31 and the lower bracket member 32 are inserted in the upper cutout opening 26 and the lower cutout opening 27 , respectively, and a welding process is applied. Then, a functional part 4 is attached to the mounting bracket 3 (the upper bracket member 31 and the lower bracket member 32 ).
  • Such a bogie frame according to the third embodiment provides the same advantages as the bogie frame of the first embodiment as described above.
  • the bogie frame of the third embodiment provides the advantage of reduced stress, which is achieved by an increased second moment of area of the cross beam, as compared to the conventional bogie frame. The reasons for this are set out below.
  • the second moments of area of them are compared.
  • the conventional cross beam since it is a round pipe having a circular cross section, its outside diameter is d 2 and its inside diameter is d 1 ; and, in the case of the cross beam of the third embodiment, since it is a rectangular pipe having a square cross section, its outside width is d 2 and its inside width is d 1 (see FIG. 2 and FIG. 6( b ) ).
  • the second moment of area I A of the conventional cross beam is determined by the following equation (1)
  • the second moment of area I B of the cross beam of the third embodiment is determined by the following equation (2):
  • cross beam configuration of the bogie frame in the third embodiment may be applied to the bogie frame of the second embodiment as described above.
  • FIG. 7 shows cross-sectional views of a cross beam of the bogie frame in accordance with a fourth embodiment of the present invention, which schematically shows an example of a configuration for mounting a functional part.
  • FIG. 7( a ) shows a state in which the functional part and the mounting bracket are detached from the cross beam
  • FIG. 7( b ) shows a state in which the mounting bracket has been joined to the cross beam and the functional part has been mounted thereon.
  • the bogie frame of the fourth embodiment shown in FIG. 7 is a variation of the bogie frame of the first embodiment shown in FIG. 4 , in which the configuration of the cross beam has been changed.
  • the cross beam 2 is composed of four plates joined together in such a manner that it has a horizontally elongated rectangular cross section as shown in FIG. 7 .
  • the cross beam 2 of the fourth embodiment is formed of steel plates joined together by welding, which constitute the respective sections, i.e., a top plate section 21 , a bottom plate section 22 , and a pair of side plate sections 23 , 24 .
  • the cross beam 2 includes therein reinforcing ribs 2 c disposed parallel to the side plate sections 23 , 24 to ensure sufficient strength.
  • the cross beam 2 of this embodiment has an upper cutout opening 26 and a lower cutout opening 27 .
  • the upper bracket member 31 and the lower bracket member 32 are inserted in the upper cutout opening 26 and the lower cutout opening 27 , respectively, and a welding process is applied. Then, a functional part 4 is attached to the mounting bracket 3 (the upper bracket member 31 and the lower bracket member 32 ).
  • Such a bogie frame according to the fourth embodiment provides the same advantages as the bogie frame of the first embodiment as described above.
  • cross beam configuration in the bogie frame of the fourth embodiment may also be applied to the bogie frame of the second embodiment as described above.
  • FIG. 8 shows cross-sectional views of a cross beam of the bogie frame in accordance with a fifth embodiment of the present invention, which schematically shows an example of a configuration for mounting a functional part.
  • FIG. 8( a ) shows a state in which the functional part and the mounting bracket are detached from the cross beam
  • FIG. 8( b ) shows a state in which the mounting bracket has been joined to the cross beam and the functional part has been mounted thereon.
  • the bogie frame of the fifth embodiment shown in FIG. 8 is a variation of the bogie frame of the first embodiment shown in FIG. 4 , in which the configuration of the mounting bracket has been changed and accordingly the configuration of the cutout opening in the cross beam has been changed.
  • the mounting bracket 3 is composed of two vertically separate parts, an upper bracket member 31 and a lower bracket member 32 , as shown in FIG. 8 .
  • the lower bracket member 32 is to be located above the lowermost portion of the cross beam 2 .
  • the top plate section 21 of the cross beam 2 has an upper cutout opening 26 , extending to one of the side plate sections 23 (the right-hand side plate section in FIG. 8 ), for receiving the upper bracket member 31 , as with the first embodiment.
  • the side plate section 23 of the cross beam 2 has a lower cutout opening 27 for receiving the lower bracket member 32 .
  • the bottom plate section 22 of the cross beam 2 has an opening 28 for work in the vicinity of the lower cutout opening 27 .
  • the upper bracket member 31 is inserted in the upper cutout opening 26 of the cross beam 2 , and a welding process is applied.
  • the lower bracket member 32 is inserted in the lower cutout opening 27 of the cross beam 2 , and a welding process is applied.
  • the lower bracket member 32 is joined to the side plate section 23 of the cross beam 2 by fillet welding as shown in FIG. 8( b ) .
  • the bogie frame fitted with the mounting bracket 3 (the upper bracket member 31 and the lower bracket member 32 ) which has been welded to its cross beam 2 incorporates the functional part 4 via the mounting bracket 3 .
  • the functional part 4 is fixed to the lower bracket member 32 by a bolt 29 , for example.
  • the work of fixing may be performed through the opening 28 formed in the bottom plate section 22 of the cross beam 2 .
  • Such a bogie frame according to the fifth embodiment provides the same advantages as the bogie frame of the first embodiment as described above.
  • mounting bracket configuration and the cross beam configuration of the bogie frame in the fifth embodiment may be applied to the bogie frames of the third and fourth embodiments as described above.
  • the bogie frame for railway vehicles of the present invention is useful in a variety of railway vehicle applications.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Connection Of Plates (AREA)
  • Mounting Of Bearings Or Others (AREA)
US14/418,092 2012-08-13 2013-07-17 Bogie frame for railway vehicles Active US9446775B2 (en)

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JP2012179373A JP5772761B2 (ja) 2012-08-13 2012-08-13 鉄道車両の台車枠
JP2012-179373 2012-08-13
PCT/JP2013/004357 WO2014027440A1 (ja) 2012-08-13 2013-07-17 鉄道車両の台車枠

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JP (1) JP5772761B2 (de)
KR (1) KR101707342B1 (de)
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JP5765292B2 (ja) * 2012-05-21 2015-08-19 新日鐵住金株式会社 鉄道車両の台車枠
JP5772761B2 (ja) * 2012-08-13 2015-09-02 新日鐵住金株式会社 鉄道車両の台車枠
JP6564300B2 (ja) * 2015-10-26 2019-08-21 日本車輌製造株式会社 鉄道車両用台車枠
JP6864504B2 (ja) * 2017-03-07 2021-04-28 川崎重工業株式会社 鉄道車両用台車枠及びそれを備えた鉄道車両
CN108099937A (zh) * 2018-02-01 2018-06-01 株洲时代电子技术有限公司 一种地铁轨道工程车辆电传动转向架构架
JP6622842B2 (ja) * 2018-04-16 2019-12-18 川崎重工業株式会社 鉄道車両用駆動台車
CN108909757A (zh) * 2018-06-15 2018-11-30 中车青岛四方机车车辆股份有限公司 一种铁路车辆转向架构架及转向架
CN113442966B (zh) * 2020-03-27 2022-10-18 比亚迪股份有限公司 用于轨道车辆的转向架和具有其的轨道车辆
CN111994117B (zh) * 2020-08-14 2022-05-17 中车唐山机车车辆有限公司 转向架侧梁、转向架及轨道车辆
CN111994116A (zh) * 2020-08-14 2020-11-27 中车唐山机车车辆有限公司 转向架及轨道车辆

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EP2883778B1 (de) 2019-10-23
KR101707342B1 (ko) 2017-02-15
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CA2879515C (en) 2016-07-05
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CN104507781B (zh) 2016-09-14
EP2883778A1 (de) 2015-06-17

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